I could really use some good advice. Currently running Vista Ultimate, but no clue where my activation key is. Long story, but my system is cluttered with a lot of partially uninstalled apps. Now, I am seriously thinking of bidding on eBay for Win Vista Business. Questions: 1] If I don't have a bootable DVD, and simply installed Business right over the top of Vista Ultimate would that possibly cause a problem? 2] It has been so long since I tried to do a reformat or make a bootable DVD that I have forgotten how to do it. Anyone know of a good, detailed, tutorial on this? Thanks very much.